Dubautia arborea x ciliolata ssp glutinosa 1 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia ciliolata 1 Mauna Loa Trail, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia ciliolata 2 Mauna Loa Trail, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 4 Iliau Loop Trail, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 5 Iliau Loop Trail, Kauai, Hawaii 130714 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 6 Iliau Loop Trail, Kauai, Hawaii 130714 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 7 Iliau Loop Trail, Kauai, Hawaii 130714 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 8 Iliau Loop Trail, Kauai, Hawaii 130714 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 10 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 4 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 5 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 6 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 9 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia plantaginea 1 Puu Kaua, Oahu, Hawaii 840226 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia plantaginea 2 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia raillardioides 1 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia raillardioides 2 Pihea Trail, Alakui Swamps, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 10 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 6 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 7 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 8 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 9 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 2 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 3 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 5 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis x virescens 2 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis x virescens 4 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis x virescens 5 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 1 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 10 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 11 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 4 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 5 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 6 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 7 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 9 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia arborea x ciliolata ssp glutinosa 2 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia ciliolata 3 Mauna Loa Trail, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia ciliolata 4 Mauna Loa Trail, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 1 Iliau Loop Trail, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 2 Iliau Loop Trail, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia gymnoxiphium 3 Iliau Loop Trail, Kauai, Hawaii 130713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia hobdyi Limahuli Garden, Kauai, Hawaii 130712 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia kauensis Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 1 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 2 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 3 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 7 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia menziesii 8 Haleakala, Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 1 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 2 Haleakala, East Maui, Hawaii 130719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 3 Haleakala, East Maui, Hawaii 130719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 4 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp macrocephala 5 Haleakala, East Maui, Hawaii 130716 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 1 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 4 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 6 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis ssp sandwicensis 7 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis x virescens 1 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia sandwicensis x virescens 3 Olinda Endangered Plant Facility, East Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 2 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 3 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dubautia scabra 8 Kilauea Iki, Big Island, Hawaii 130725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).